I will perform the function of a whetstone, which is about to restore sharpness to iron, though itself unable to cut.
[Lat., Fungar vice cotis, acutum
Reddere quae ferrum valet, exsors ipsi secandi.]
It will be practicable to blot written words which you do not publish; but the spoken word it is not possible to recall.
[Lat., Delere licebit
Quod non edideris; nescit vox missa reverti.]